Roof panel for cabin of working machine



1.1 is a front elevation view of a roof panel for cabin of working machine, showing my new design;

1.2 is a rear elevation view thereof;

1.3 is a left side elevation view thereof;

1.4 is a right side elevation view thereof;

1.5 is a top view thereof;

1.6 is a bottom view thereof;

1.7 is an upper right rear perspective view thereof; and

1.8 is an upper left front perspective view thereof. 

CLAIM The ornamental design for a roof panel for cabin of working machine, as shown and described. 